package com.dtguai.app.common.validator;

import com.dtguai.app.common.exception.DefinedException;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import java.util.Set;

/**
  * hibernate-validator校验工具类
  * @author  guoLiang
  * @date 2018-09-29 03:46:03
  */
public class ValidatorUtils {
   private static Validator validator;

   static {
       validator = Validation.buildDefaultValidatorFactory().getValidator();
   }

   /**
    * 校验对象
    * @param object        待校验对象
    * @param groups        待校验的组
    * @throws DefinedException  校验不通过，则报RRException异常
    */
   public static void validateEntity(Object object, Class<?>... groups) throws DefinedException {
       Set<ConstraintViolation<Object>> constraintViolations = validator.validate(object, groups);
       if (!constraintViolations.isEmpty()) {
           StringBuilder msg = new StringBuilder();
           for (ConstraintViolation<Object> constraint : constraintViolations) {
               msg.append(constraint.getMessage()).append("<br>");
           }
           throw new DefinedException(msg.toString());
       }
   }
}
